Hittite has extended its high speed logic product line by releasing three new logic functions which provide operating clock rates up to 26 GHz. Optimised for applications requiring ultra low jitter and very low DC power consumption, these devices are ideal for deployment in optical systems, frequency synthesis, ATE, broadband test and measurement equipment, and radar signal processing systems.
The HMC706LC3C is an NRZ-to-RZ converter designed to support data transmission rates up to 13 Gbps, and clock rates up to 13 GHz. All input signals are terminated with 50 Ω to VCC on-chip, and may be either AC or DC coupled, as may the differential outputs. Ideal for use in SONET OC-192 equipment, or in Mach-Zehnder optical modulators, the device provides typical rise and fall times of 15 and 13 ps respectively. It exhibits 275 ps propagation delay and 2 ps of deterministic jitter while dissipating only 594 mW from a +3,3 V supply.
The HMC678LC3C is a 2:1 selector designed to support data transmission rates of up to 13 Gbps, and selector port operation up to 13 GHz. The selector routes one of the two single-ended inputs to the differential output upon assertion of the appropriate select port. All single-ended input signals to the device are terminated with 50 Ω to ground on-chip, and may be either AC or DC coupled, while the outputs may be operated either differentially or single-ended. The HMC678LC3C provides a propagation delay of 125 ps and rise and fall times of 19 and 18 ps respectively. It also provides 2 ps of deterministic jitter while dissipating only 250 mW from a -3,3 V supply.
The HMC679LC3C is a T Flip-Flop with reset capability, designed to support clock frequencies up to 26 GHz. Inputs signals to the device are terminated with 50 Ω to ground on-chip, and may be either AC or DC coupled. Ideal as a high speed frequency divider, the device exhibits a propagation delay of only 95 ps, with typical rise and fall times of 18 and 17 ps respectively. The HMC679LC3C exhibits 2 ps of deterministic jitter while dissipating only 270 mW from a -3,3 V supply.
The devices also feature an output level control pin which allows for signal loss compensation or signal level optimisation. They are specified for operation from
-40°C to +85°C, and are housed in ceramic 3 x 3 mm SMT packages.
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